[ 12.265834][ T232] packetdrill (232) used greatest stack depth: 24376 bytes left [ 12.265854][ T232] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.265857][ T232] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 232, name: packetdrill [ 12.265859][ T232] preempt_count: 2, expected: 0 [ 12.265861][ T232] RCU nest depth: 0, expected: 0 [ 12.265863][ T232] locks held by packetdrill/232: 5, last CPU#2: [ 12.265866][ T232] #0: ffffffff9d6027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.265881][ T232] #1: ffffffff9d769cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.265889][ T232] #2: ffffffff9d769d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.265895][ T232] #3: ffffffff9d689660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.265902][ T232] #4: ffffffff9d689560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 12.265909][ T232] irq event stamp: 2246208 [ 12.265910][ T232] hardirqs last enabled at (2246207): [] __down_trylock_console_sem+0x86/0xa0 [ 12.265915][ T232] hardirqs last disabled at (2246208): [] console_emit_next_record+0x3d4/0x4c0 [ 12.265918][ T232] softirqs last enabled at (2245976): [] tcp_close+0x2b/0xb0 [ 12.265923][ T232] softirqs last disabled at (2245974): [] release_sock+0x21/0x240 [ 12.265928][ T232] Preemption disabled at: [ 12.265929][ T232] [<0000000000000000>] 0x0 [ 12.265937][ T232] CPU: 2 UID: 0 PID: 232 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.265943][ T232] Tainted: [W]=WARN [ 12.265944][ T232] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.265946][ T232] Call Trace: [ 12.265949][ T232] [ 12.265951][ T232] dump_stack_lvl+0x6f/0xa0 [ 12.265959][ T232] __might_resched.cold+0x1fe/0x2c1 [ 12.265965][ T232] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.265970][ T232] ? __kmalloc_noprof+0xdb/0x760 [ 12.265977][ T232] __kmalloc_noprof+0x443/0x760 [ 12.265981][ T232] ? alloc_buf.isra.0+0x4b/0x260 [ 12.265990][ T232] ? do_raw_spin_unlock+0x59/0x250 [ 12.265994][ T232] alloc_buf.isra.0+0x4b/0x260 [ 12.266000][ T232] put_chars+0x1e1/0x2f0 [ 12.266005][ T232] ? __send_to_port+0x420/0x420 [ 12.266008][ T232] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 12.266014][ T232] ? validate_chain+0x38b/0xc20 [ 12.266023][ T232] hvc_console_print+0x292/0x780 [ 12.266034][ T232] ? hvc_write+0x3a0/0x3a0 [ 12.266038][ T232] ? rcu_is_watching+0x16/0xd0 [ 12.266042][ T232] ? lock_acquire+0x13c/0x160 [ 12.266049][ T232] console_emit_next_record+0x22f/0x4c0 [ 12.266055][ T232] ? devkmsg_read+0x4b0/0x4b0 [ 12.266057][ T232] ? console_flush_one_record+0x106/0x710 [ 12.266062][ T232] ? rcu_is_watching+0x16/0xd0 [ 12.266066][ T232] ? lock_acquire+0x13c/0x160 [ 12.266073][ T232] console_flush_one_record+0x46f/0x710 [ 12.266079][ T232] ? console_emit_next_record+0x4c0/0x4c0 [ 12.266082][ T232] ? __lock_acquire+0x518/0xc20 [ 12.266091][ T232] console_unlock+0xee/0x1f0 [ 12.266095][ T232] ? console_flush_one_record+0x710/0x710 [ 12.266098][ T232] ? rcu_is_watching+0x16/0xd0 [ 12.266101][ T232] ? lock_acquire+0x60/0x160 [ 12.266108][ T232] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.266111][ T232] ? vprintk_emit+0x320/0x3e0 [ 12.266116][ T232] vprintk_emit+0x37c/0x3e0 [ 12.266122][ T232] ? wake_up_klogd_work_func+0x90/0x90 [ 12.266128][ T232] ? __lock_acquire+0x518/0xc20 [ 12.266134][ T232] _printk+0xc7/0x100 [ 12.266140][ T232] ? snapshot_read.cold+0x21/0x21 [ 12.266145][ T232] ? do_raw_spin_lock+0x131/0x280 [ 12.266149][ T232] ? __rwlock_init+0x150/0x150 [ 12.266156][ T232] ? do_raw_spin_lock+0x131/0x280 [ 12.266161][ T232] do_exit.cold+0x82/0x9c [ 12.266167][ T232] ? exit_notify+0x890/0x890 [ 12.266170][ T232] ? __lock_release.isra.0+0x69/0x1a0 [ 12.266175][ T232] ? rcu_is_watching+0x16/0xd0 [ 12.266182][ T232] do_group_exit+0xb8/0x370 [ 12.266187][ T232] __x64_sys_exit_group+0x3c/0x50 [ 12.266190][ T232] x64_sys_call+0x1567/0x1570 [ 12.266194][ T232] do_syscall_64+0xff/0x530 [ 12.266199][ T232] ? irq_exit_rcu+0x1a/0x30 [ 12.266204][ T232] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.266207][ T232] RIP: 0033:0x479678 [ 12.266210][ T232] Code: Unable to access opcode bytes at 0x47964e. [ 12.266212][ T232] RSP: 002b:00007fff6b230fb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.266216][ T232] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 12.266218][ T232] RDX: 000000002f757708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 12.266220][ T232] RBP: 00007fff6b231010 R08: 0000000000000000 R09: 000000002f7583e0 [ 12.266222][ T232] R10: 0000000000000110 R11: 0000000000000246 R12: 00007fff6b231148 [ 12.266223][ T232] R13: 00007fff6b2311d0 R14: 0000000000000000 R15: 000000000054d560 [ 12.266236][ T232]